Fastening device for gun-barrels



G. W. OILLEY. FASTENING DEVICE FOR GUN BARRELS.

(No Model.)

Patented Apr. 14,1891.

PT .i.

INVENTU UNITED STATES PATENT OFFICE.

GEORGE \V. OILLEY, OF NORVVIOH, CONNECTICUT.

FASTENING DEVICE FOR GUN-BARRELS.

SPECIFICATION forming part of Letters Patent No. 450,448, dated April14, 1891.

Application filed November 28,1890. Serial No. 372,933. (No model.)

To (LZZ whom it may concern.-

"Be it known that I, GEORGE W. CILLEY, of Norwich, in the county of NewLondon and State of Connecticut, have invented certain new and usefulImprovements in Fastening Devices for Gun-Barrels, of which thefollowing, taken in connection with the accompanying drawings, is aspecification. Y

My invention relates to the method of fastening a gun-barrel to itsbreech-frame; and it consists in fitting into the frame at one side ofthe gun a jaw or clamp adapted to enter into a transverse groove made inthe barrel and to be drawn into place by a clamping-screw operated fromthe other side of the gun. This mechanism and arrangement is shown inthe accompanying drawings, in which Figure 1 is a side view of a part ofa gun, showing a part of my attachment. Fig. 2 is a side view similar toFig. l, but taken fromthe other side. Fig. 3 is a cross-section taken online m to of Figs. 1 and 2. Fig.4 is a view in cross-section showing theclamping-jaw slightly modified. Fig. 5 is a plan showing a part of thegun and indicating by dotted lines the shape of the modified clamp ofFig. at.

In the drawings I have shown only such parts of a gun as are necessaryto illustrate my invention, and need not describe the gun in detail, asmy device will apply equally well to a great many styles of guns.

The barrel is indicated by A and the breechframe by B. The breech end ofthe barrel B is coned, as indicated by dotted lines at a a, Figs. 1 and5, and fits into a corresponding recess made in the breech-frame.

clamping-piece O is drawn in, so that it will hold the barrel firmly inplace. Vhen it is desired to remove the barrel, the screw D is so turnedas to force the clamping-piece O outward, as indicated by dotted linesin Fig. 2. This causes the clamping-piece C to withdraw from the recessin the gun-barrel, and thus leave itin condition to be removed from theframe. The clamping-piece O is held from turning and also limited in itsmotion by the screw K, which fits in a groove made in the clamping-piecefor that purpose. The screw D is held longitudinally in place by the pinE, Fig. 3, which fits into an annular groove made in it, as shown.

In Figs. 4 and 5 the clamping-piece is modified in shape, it beingprovided with an arm C extending upward through a vertical groove madein the side of the barrel, as shown. It also has a short projection Gextending below its center, which forms, in connection with the screw K,a guide for keeping it in place and limiting its movement. The frontside of the arm 0 is beveled, as shown at c c, Fig. 5, so that as theclampingpiece is drawn in it will act as a wedge to force the gun-barrelback firmly into its place.

I claim In a gun, the combination of a barrel having a cone-shapedbreech end, said breech end adapted to fit into a recess in thebreechframe and having a lateral groove for receivinga clamping-piece,as described, said clamping-piece so located in the said breech-framethat it can engage with and hold the barrel in place, and a screw bywhich the said clamp is operated, substantially as and for the purposeset forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing Witnesses, on this 24th day of November, A.D. 1890.

' GEORGE \V. CILLEY.

'Witnesses:

SOLOMON LUCAS, ELISHA P. SLOCUM.

